TOP PHOTOS: Aug. 20, 2013

Nicole Webb cries as she talks on a phone in the parking lot of a store while waiting for her 9-year-old son, a student at Ronald E. McNair Discovery Learning Academy in Decatur, Ga., on Tuesday, Aug. 20, 2013. Superintendent Michael Thurmond says all students at the school east of Atlanta are accounted for and safe and that he is not aware of any injuries. (AP Photo/John Bazemore)

Student Aaliyah Battle, 4, hangs on the bus window and cries as DeKalb County Sheriff's Deputy John Conley comforts her while she waits to be reunited with her family Tuesday afternoon Aug. 20, 2013, in DeKalb Coutny, Ga. A teen opened fire with an assault rifle Tuesday at officers who shot back at McNair Discovery Learning Academy in Decatur, the police chief said, with dramatic overhead television footage capturing the young students racing out of the building, being escorted by teachers and police to safety. No one was injured. (AP Photo/Atlanta Journal-Constitution, Ben Gray) MARIETTA DAILY OUT; GWINNETT DAILY POST OUT; LOCAL TV OUT; WXIA-TV OUT; WGCL-TV OUT

Serena Williams helps herself up after slipping against Victoria Azarenka, from Belarus, during the finals match at the Western & Southern Open tennis tournament, Sunday, Aug. 18, 2013, in Mason, Ohio. (AP Photo/Al Behrman)

Fans of group One direction, display messages for Harry Styles, ahead of the UK Premiere of One Direction: This Is Us, at a central London cinema, Tuesday, Aug. 20, 2013. (Photo by Jonathan Short/Invision/AP)

In this July 22, 2013, Aymara Indian Ramona Bustos walks barefoot on potatoes to remove frozen dew and the peels as she works in extremely cold temperatures on La Cumbre mountain on the outskirts of La Paz, Bolivia. For centuries, people in Boliviaís high Andes have eaten freeze-dried potatoes, taking advantage of freezing temperatures and the burning sun to prepare the local staple called ìchuno.î ìI step on the potatoes with a lot of force to prepare the chuno, which will last me a long time. We will not go hungry,î said Bustos. (AP Photo/Juan Karita)

Indian security personnel watch Indiaís Congress party President Sonia Gandhi leave after paying tributes to her husband and former Indian Prime Minister Rajiv Gandhi on his birth anniversary in New Delhi, India, Tuesday, Aug. 20, 2013. Rajiv Gandhi was killed in a suicide bomb attack on May 21, 1991 in Tamil Nadu state during an election campaign. (AP Photo /Manish Swarup)

An Indian forest guard looks at an one-horned rhinoceros in a paddy field at Rajbhoral village in Sonitpur district of Assam state, India, Tuesday, Aug. 20, 2013. The Rhino was strayed out of the nearby Kaziranga National Park as the villagers try to chase it back to the sanctuary. Assam is home for the world's largest concentration of rhinos. (AP Photo/Anupam Nath)

A crowd watches as residents cross a flooded street to evacuate to higher grounds in Marikina city, east of Manila, Philippines on Tuesday, Aug. 20, 2013. Some of the Philippines' heaviest rains on record fell for a second day Tuesday, turning the capital's roads into rivers and trapping tens of thousands of people in homes and shelters. The government suspended all work except rescues and disaster response. (AP Photo/Aaron Favila)

Lebanese Shiite kids light candles during a vigil at the site of a car bomb explosion, in an overwhelmingly Shiite area and stronghold of the Lebanese militant group Hezbollah, at the southern suburb of Beirut, Lebanon, Tuesday, Aug. 20, 2013. Car bombings and rocket attacks targeting Hezbollah strongholds south of Beirut have shaken the militant group and its Shiite supporters to the core, bringing a sense of fear and unease to a community that has been largely spared the violence plaguing the rest of the country. (AP Photo/Hussein Malla)

Filipino children wait inside a passenger jeep after their family move to a temporary evacuation center in Marikina city, east of Manila, Philippines on Tuesday, Aug. 20, 2013. Some of the Philippines' heaviest rains on record fell for a second day Tuesday, turning the capital's roads into rivers and trapping tens of thousands of people in homes and shelters. The government suspended all work except rescues and disaster response. (AP Photo/Aaron Favila)